Viessmann FB2B Installation And Service Instructions Manual page 57

4.8 to 26 kw gas condensing/solar storage combi boiler natural gas and lpg version gas council no.: 47-819-18 19 kw 47-819-19 26 kw

Table of Contents

Further details regarding the individual steps

Function/system components

System with DHW circulation pump:

DHW circulation pump connection at extension AM1,

terminal A2

System version 5

One heating circuit without mixer A1, one heating circuit with mixer M2 (with

extension kit), one heating circuit with mixer M3 (with extension kit) and low

loss header (with/without DHW heating)

1 Vitodens 242-F

2 Outside temperature sensor

3 Heating circuit without mixer A1

(heating circuit 1)

4 Heating circuit pump A1

5 Heating circuit with mixer M2 (heat-

ing circuit 2)

6 Flow temperature sensor M2

Commissioning, inspection, maintenance

7 Heating circuit pump M2

8 Extension kit for one heating circuit

9 Heating circuit with mixer M3 (heat-

qP Temperature limiter for limiting the

(cont.)

Code

Adjust Delivered con-

—

with mixer M2

ing circuit 3)

maximum temperature of underfloor

heating systems

dition

34:0

Table of Contents

Chapters

Table of Contents

Vitodens 242-f